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GAS ENGINE.

Patented Ja.11.,5, 1886.4

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i GAS ENGINE. 4

7M" L ami/W UNITED STATES PAT-EET .0.51320 EDOUARD DELAMARE- DEBOUTTEVILLE AND LEON PAUL CHARLES MA- LANDIN, OF FONTAlNE-LE-BOURG, SEINE-INFERIEURE, FRANCE.

GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 333,838. dated January 5, 1886.

Application filed April 14, 1884. Serial No. 127,895.

(No model.) Patented in FranceFebruary 12, 1884, No.160,267; inBelgium February 23, 1884, No. 64,253; inEnglandFebruary 26, 1884, No. 3,986; in Germany March 4, 1884, No. 33,915; in Italy March 20, 1884, No. 76,607; in Russia April 2, 1884; in Spa-in May 28, 1884, No. 5,579, and in Austria August 29, 1884, No. 8,721.

To all whom it may concern:

Be it known that we, EDOUARD DELAMARE- DEBoUT'rEviLLE and LEON PAUL OHARLEs MALANDIN, both citizens of the Republic of France, and residing in Fontaine-le-Bourg, (Seine-lnfrieure,) France,have invented certain Improvements in GasEngines,(for-which we have obtained patents in France, No. 160,267, February 12, 1884; Great Britain, No. 3,986, February 26, 1884; Austria, No. 8,721, August 29, 1884; Germany, No. 33,915, March 4, 1884; Belgium, No. 64,253, February 23, 1884; Spain, No. 5,579,May 28,1884; Italy, No. 76,607, March 20, 1884, and Russia, April 2, 1884,) of which the following is a specifica` tion.

Our invention consists of certain improvements in the construction of gas-engines, designed more particularly with the view of increasingtheir simplicity and lightness, the explosive gas beingignited by electricity.

lIn the accompanying drawings, Figure 1 is a vertical section of our improved gas-engine. Fig. 2-is an end elevation at the crank-shaft end of the machine. Fig. 3 is a view of the opposite end of the engine. Fig. 4 is a sectional plan view. Fig. 5 illustrates in section the sliding valve. Fig. 6 is an inside view of the cover of the slide detached; and Fig. 7 is a sectional plan view of a construction of carburetor which we prefer to use in connection with the engine.

A is the working-cylinder, which we prefer to inclose in awater-jacket, A', provided with an inlet-pipe, y, and an outlet-pipe, y', for the circulation of the water. In this cylinder A Works the piston B, provided with a suitable number of packing-rings, and having its rod b connected to the crankshaft S, on the outer end of which is the usualiiy-wheel,T,and beltpulley t. The outer end of the cylinder A is closed by the head C, to which is adapted the transverse sliding valve D, inclosed by the cover E. As shown in Fig. 4, this sliding valve is controlled by the crank d on the longitudinal rod R,through the medium of the connecting-rod d. This rod or shaft R receives a continuous rotary motion from the crankshaft S, through the medium of bevelgear ing rr', Fig. 4.

The construction of the sliding valve D is illustrated more fully in Fig. 5, from which it will be seen that it is provided with a series of longitudinal openings, Q, for the admission of air, and openinginto these passages Q are transverse openings P,for the admission of gas through the opening or port e of the cover E, Fig. 6. The gaseous mixture then passes through the common opening or portO in the slide and the chamber O' in the head ofthe cylinder into the interior of the latter, when the slide is in the proper position for that purpose. The slide D also carries the two insulated igniting-points h, for producing the electric spark, these points being the terminals of an induction apparatus, H, (shown by dotted lines in Fig. 1,) receiving continuous current from an accumulator, H', charged by batteries H, or by a dynamo in any well-known way. In the cylinder-head immediately below the port O is the exhaust-port controlled by a valve, F, which is to be opened inward by a positive motion, it being kept to its seat by a spring, f. On the stem of the valve bears a lever, G, Fig. 4, pivotcd at g, and having its opposite arm within the path of a tappet, g', on the crank d of the shalt R, so that at each complete revolution of the shaft R the lever G will be so operated as to open the valve F and allow the products of combustion to be discharged through the exhaust-port. The gas enters through a supply-pipe, I, controlled by the hand-valve I, Figs. 3 and 4, and by the springvalve i, Fig. 4, which is opened at each Inovement of the slide D by the end of the latter striking against the stem of the valve, so as to admit the gas to the slide at the proper time.

For gas we may use either ordinary illuminatinggas, hydrogen gas mixed with carbonio oxide and illuminatinggas, or the gas produced by the passing of a current of air over hydrocarbon in asuitable carburetor. In Figs. 1 and 7 we have illustrated the form of carburetor which may be used for this purpose. In Fig. 1 it is shown as consisting of three sections, J, J', and J2, connected with each other through pipes j, and having the inlet for the air at j. Each section or chamber contains, depending from the top to within a distance from the bottom, a double-spiral coil or plate, 7c, which forms two spiral passages communieating with each other t-hrough the central chamber, 7c', and the section being filled with hydrocarbon to a point above the lower end of these double-spiral plates, the air is compelled to take a long circuitous course in contact with the hydrocarbon before passing out into the pipe I, by which the carbureted gas is supplied to the cylinder.

If desired, the Vpassages in the sections of the carburetor may be provided with some porous substancesuch as pumice-stone, sponge, and the like-to present a more extended surface of hydrocarbon for contact with the air.' Ve do not limit ourselves, however, to the use of any particular construction o'f carburetor. It is desirable to inclose it within a tank, L, to which is supplied the more or less heated water which is received through the pipe y from the water-jacket of the cylinder. The gas coming through the pipe Z is allowed to pass by the opening of the valve t into the passage e in the cover E, and at the proper moment the openings P in the slide D coincide with this passage e, so as to admit the gas to the port P, Fig. 5, to which air at the same time has been admitted through the openings Q. The continued movement of the slide D then allows the mixture of air and gas to enter the chamber O to ignite the explosive mixture by the continuous spark produced by the induction apparatus H, as is well understood.

Ve prefer to provide the igniting-chamber O with a small oritce or outlet, m, which, when compression takes place within the cylinder by the movement of the piston, allows the compressed gases in the cylinder to expel the burned gas in the cavity O. Then the piston has completed its outward stroke due to the explosion above described, it returns and makes another inward stroke under the action of the liy-wheel and compresses the gaseous mixture which it previously drew in. After the explosion has taken place again the piston, after another outward stroke returns owing to the momentum ofthe fly-Wheel, and expels the products of combustion through the exhaust-port, the valve F of which is opened just before the piston commences to return. The gases are discharged directly intoA the atmosphere or th rough a suitable device for producing silent discharge. The valve F is then momentarily closed again,and remains closed during the introduction, compression, and explosion of the next supply of gaseous mixture.

We prefer to combine with the engine a lubricator, which in this case is shown as consisting of a vessel, V, Fig. 3, containing the lubricating-fluid, and having a small tube, o, leading up into the inlet-pipe l, so that on the outward stroke of the piston,when it draws in the gas and air,a certain amount of lubricating-fluid will be exhausted or drawn by the vacuum from the vessel V to lubricate the slide and piston.

Instead of employing points to produce an electric spark to ignite the gas the induction apparatus maybe dispensed with and a platinum or other line wire used in connection with an electric generator to ignite the gas by its incandescence.

Ve claim as our inventionl. The combination of the cylinder and piston of a gas-engine with the head C, having a chamber, O', and a slide, D, provided with a series of longitudinal air-openings, Q, transverse gas-passages P, and port O.

2. The combination of the cylinder and piston of a gas-engine with a gas-supply pipe, I, having a spring-valve, i, and a separate slide-valve, D, carrying the air and gas passages and adapted to come into contact with the said valve to open the same periodically, substantially as set forth.

In testimony whereof we have signed our names to this specication in the presence of two subscribing witnesses.

E. DELAMAREDEBOUTTEVILLE. L. P. C. MALANDIN.

VVitn esses L. DELAMARE-DEBOUTTEVILLE, J. LERoIsETTE. 

